1: (0 3 9)

(0)(1 19 17)(2 20 4)(3 15 9 7 5)(6 16 14)(8 12 10)(11 18 13)

2: (2 20 4)

(0)(1 19 17)(2)(3 15 9 7 5)(4)(6 16 14)(8 12 10)(11 18 13)(20)

3: (3 15 5)

(0)(1 19 17)(2)(3)(4)(5 9 7)(6 16 14)(8 12 10)(11 18 13)(15)(20)

4: (6 16 14)

(0)(1 19 17)(2)(3)(4)(5 9 7)(6)(8 12 10)(11 18 13)(14)(15)(16)(20)